package com.msb.mall.member.exception;

/**
 * @Author zhangjiajun
 * @Email zhangjiajun@hydsoft.com
 * @Description 用户名存在的自定义异常
 * @Date 2025/7/31 12:58
 */
public class UsernameExistException extends RuntimeException {

    public UsernameExistException() {
        super("用户名存在");
    }
}
